This paper examines the effects of moral philosophy and ethnocentrism on quality of life orientation in international marketing. It also provides a cross-cultural comparison of ethical values between Koreans and Americans. International quality-of-life (IQOL) orientation refers to marketers' disposition to make decisions to enhance the well-being of consumers in foreign markets while preserving the well-being of other stakeholders. It is hypothesized that marketers' moral philosophy and ethnocentrism influence the development of marketers' IQOL. Specifically, the higher the IQOL orientation of international managers, the higher their moral idealism, the higher their moral relativism, and the lower their ethnocentrism. Also, it is hypothesized that American managers are likely to score higher on moral relativism but lower on moral idealism compared to their Korean counterparts. Also, Korean managers are expected to be more ethnocentric than American managers. Data were collected from business professionals who enrolled in professional MBA courses both from the U.S. and Korea. The results provided support for the hypothesized relationships. Managerial implications of these relationships are discussed.